Supreme Court Justice Antonin Scalia issued a harsh ruling Friday sure to raise the ire of Chicagoans, when he declared Chicago-style deep dish pizza to not be pizza at all.

Deep dish pizza “shouldn’t be called pizza,” the native New Yorker said in remarks to the Union League Club of Chicago, the Chicago Sun-Times reports. “It’s very tasty, but it’s not pizza.”

The Supreme Court’s famously prickly conservative and self-avowed strict constitutionalist didn’t limit himself to the subject of pizza in discussing the things he feels have strayed too far from their original intent.

The high court, he said, “has adopted the demonstrably unhistoric view that the Constitution forbids not merely the favoring of one religion over the other, but even the favoring of religion in general. In fact, it forbids the former but not the latter.”